CN2047710U - Slotted drilling tool for coal-mining electrical driller - Google Patents
Slotted drilling tool for coal-mining electrical driller Download PDFInfo
- Publication number
- CN2047710U CN2047710U CN 88217736 CN88217736U CN2047710U CN 2047710 U CN2047710 U CN 2047710U CN 88217736 CN88217736 CN 88217736 CN 88217736 U CN88217736 U CN 88217736U CN 2047710 U CN2047710 U CN 2047710U
- Authority
- CN
- China
- Prior art keywords
- power transmission
- transmission shaft
- fluting
- drilling tool
- hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 16
- 238000005065 mining Methods 0.000 title description 3
- 230000005540 biological transmission Effects 0.000 claims description 34
- 229910045601 alloy Inorganic materials 0.000 claims description 5
- 239000000956 alloy Substances 0.000 claims description 5
- 230000003116 impacting effect Effects 0.000 claims description 4
- 239000003245 coal Substances 0.000 abstract description 5
- 239000011435 rock Substances 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract 1
- 238000004880 explosion Methods 0.000 description 6
- 229910000851 Alloy steel Inorganic materials 0.000 description 5
- 229910000975 Carbon steel Inorganic materials 0.000 description 5
- 239000010962 carbon steel Substances 0.000 description 5
- 238000010276 construction Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000012809 cooling fluid Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
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- Earth Drilling (AREA)
Abstract
The utility model discloses a slotted drilling tool, comprising a spiral drill rod and a drill bit. The utility model is characterized in that a slotted mechanism is added, which can drill slots on the edge of the circular hole when drilling hole, to form presplit cracks. When driving in the soft rock roadway and the coal bed roadway, overbreak and underbreak are reduced and avoided to make the roadway formed regularly, and supporting cost reduced. Using the utility model on the working surface of blast-winning technology can improve the lump coal rate and the price of coals.
Description
The utility model relates to a kind of drilling tool, more specifically to a kind of drilling tool that can slot on the edge in when boring hole, garden.
When the electric coal drill that uses in the explosion tunneling construction of existing soft-rock tunnel and heading is holed, can only get out the hole, garden, during explosion, the explosion direction can not be controlled, and the laneway molding irregularity bigger backbreaking and owe often occur and digs, influence construction quality, bring difficulty to supporting.
The purpose of this utility model is exactly to provide a kind of fluting drilling tool in order to overcome above-mentioned weak point, can slot on the edge in hole, garden, forms and gives the crack, and control explosion direction reduces or avoided backbreaking and owed and dug, and makes laneway molding regular, and supporting is also easy.
The purpose of this utility model can realize in the following manner: a kind of fluting drilling tool, comprise twist drill rods, drill bit and fluting mechanism, described fluting mechanism mainly is made up of power transmission shaft, spring, impact cover, grooving tool, removably combine closely with twist drill rods and drill bit respectively in the two ends of described power transmission shaft, described spring, impact cover, grooving tool are sleeved on the power transmission shaft successively, and the middle part of impacting cover also is fixed on the power transmission shaft versatilely with pin.
The utility model has the advantages that significantly.Use fluting drilling tool of the present utility model, can get out the hole, garden of with groove, form to give splitting and split seam, can break along this groove when making explosion, control the explosion direction effectively, realize the smooth blasting in tunnel, thereby country rock is damaged less, increase safety.Simultaneously, can save explosive, reduce freight volume, reduce the supporting and the cost of digging well.Use at blast mining face, can improve lump coal rate, improve coal price.
Description of drawings:
Accompanying drawing 1 is a structural representation of the present utility model.
Accompanying drawing 2 is the utility model transmission shaft structure figure.
Accompanying drawing 3 is the utility model grooving tool axonometric drawings.
Accompanying drawing 4 is that the utility model impacts the cover axonometric drawing.
Accompanying drawing 5 is cut-away views of another structure of the utility model grooving tool.
The utility model is described in further detail below in conjunction with accompanying drawing:
With reference to accompanying drawing 1, a kind of fluting drilling tool comprises twist drill rods 1, drill bit 11 and fluting mechanism, described fluting mechanism mainly by power transmission shaft 3, spring 4, impact cover 6, grooving tool 8, little telescopic 12, big telescopic 5 and form.Twist drill rods 11 profiles such as twisted shape, have a center small through hole along axis direction, right-hand member has bigger Shen Yuan hole, and the termination also has a groove, have two small through hole on the dark garden bore edges near bottom, Shen Yuan hole, twist drill rods 11 usefulness carbon steel or alloy steel are made.Drill bit 11 also has a center small through hole along axis direction, and the drill bit bodily form such as the claw-like of right-hand member stud with carbide bit on the bit body, the Cylinder at its middle part is cut flat, left end is a little Cylinder, has half garden connected in star near the end, and drill bit 11 usefulness carbon steel or alloy steel are made.With reference to accompanying drawing 2: power transmission shaft 3 is Cylinders, have the center small through hole along its axis direction, its right-hand member also has one than the Shen Yuan hole, the termination has a groove, have two through holes on the garden bore edges near middle part, Shen Yuan hole, its half garden groove with the left part of drill bit 11 is matched, have a square groove on the axle edge near the right side, have half garden connected in star near on the Cylinder outer rim of left end head, the big Cylinder on Cylinder right side is cut flat, it matches with the Shen Yuan hole and the end tank of twist drill rods 1, and there is a pair of shaft coupling shoulder on big Cylinder right side, and the hole gain is radially opened at the middle part of power transmission shaft 3.Power transmission shaft 3 usefulness carbon steel or alloy steel are made.With reference to accompanying drawing 3: grooving tool 8, cylinder shape such as tubulose, it can be sleeved on the power transmission shaft 3, a helicoid is worn in the upper end, and the middle part has a convex shoulder, is used for fixing big telescopic 5, two triangular hills are arranged below the convex shoulder, each welding-on has two carbide alloy fluting cutter heads below cylinder outer rim, triangular hill, and its lower surface is the plane, can also 2～5 carbide alloy flutings of welding-on cutter head on the grooving tool 8.Grooving tool 8 usefulness carbon steel or alloy steel are made.With reference to accompanying drawing 4: impact cover 6 shapes such as tubulose, central through hole can be sleeved on the power transmission shaft 3 it, the lower surface is the plane, a through hole is radially opened at the middle part, a helicoid is worn in the upper end, a number of helicoid is identical with a number and the helical pitch of the helicoid of grooving tool 8 upper ends with helical pitch, but both rotation directions are identical.Impacting cover 6 usefulness carbon steel or alloy steel makes.As accompanying drawing 1: spring 4 is sleeved on the power transmission shaft 3 from right-hand member, one end nestles up on the doubly-linked shaft shoulder its right end face on the power transmission shaft 3, the other end is close to mutually with the planar ends of impact cover 6 on being sleeved on power transmission shaft 3, pin 7 passes the through hole at impact cover 6 middle parts and the through hole gain at power transmission shaft 3 middle parts, both strings are nested together, make spring 4 be in pressured state all the time, little telescopic 12 is sleeved on spring 4 and impacts the outside of cover 6, one end is fixed on the duplex shaft shoulder, the other end is taken to be enclosed within and is impacted on the cover 6, the piece that prevents to mince enters in the spring 4, big telescopic 5 is sleeved on the outside of little impact cover, one end is taken the outside that is enclosed within little telescopic 12, other end suit is fixed on the convex shoulder on the grooving tool 8 on the power transmission shaft 3, grooving tool 8 band helicoid ends combine with impact 6 band helicoid ends, big telescopic 5 enters its mating face for the piece that prevents to mince, in the square groove of the right part of power transmission shaft 3, clamp back-up ring 10, prevent that grooving tool 8 from coming off, so just be assembled into fluting mechanism, the fluting mechanism power transmission shaft 3 left ends little Cylinder and mill in the Shen Yuan hole and groove that is inserted into twist drill rods 1 partially, the cooperation of milling inclined to one side and groove is for transfer torque, and be installed on two steel pins 2 in the half garden connected in star of two small through hole at twist drill rods deep hole edge and power transmission shaft 3 left ends, prevent relatively moving between power transmission shaft 3 and the twist drill rods 1, the little Cylinder of the left end of drill bit 11 and cut the through hole at edge in Shen Yuan hole of right-hand member of the flat power transmission shaft 3 that is inserted into fluting mechanism and half garden connected in star of drill bit 11 left ends in, prevent relatively moving between drill bit 11 and the power transmission shaft 3.Twist drill rods 1, drill bit 11 and power transmission shaft 3 communicate mutually along the central through hole of axis direction, make cooling fluid pass through this small garden hole cooling drill bit.Accompanying drawing 5 is sectional drawings that the another kind of structure of grooving tool 8 forms, and welding-on has four carbide alloy fluting cutter heads on it.
The mode that realizes fluting is: twist drill rods 1 drives drill bit 11 rotations by power transmission shaft 3 and gets out the hole, garden, after the hole, garden reaches certain depth, grooving tool 8 is run into rock mass, because it is to be sleeved on the power transmission shaft 3, so it does not rotate with power transmission shaft 3, and impact cover 6 with power transmission shaft, 3 rotate together, and based on spring 4 and helicoid, impacting cover 6 can also be at axially reciprocating, give grooving tool 8 impact forces continuously, thereby make grooving tool 8 on the bore edges of garden, leave groove.
Claims (4)
1, a kind of fluting drilling tool, the fluting drilling tool that comprises twist drill rods 1 and drill bit 11, it is characterized in that: increased a fluting mechanism, described fluting mechanism is mainly by power transmission shaft 3, spring 4, impact cover 6, grooving tool 4 is formed, power transmission shaft 3 is Cylinders, have the center small through hole along its axis direction, the one end has the hole than Shen Yuan, the termination has groove, have two through holes on the garden bore edges near middle part, Shen Yuan hole, the other end has a little Cylinder, successively the have garden post adjacent with little Cylinder cut flat and the duplex shaft shoulder, its middle part has a through hole gain, grooving tool 8 shapes such as tubulose, one end has helicoid, the other end is the plane, the middle part has a convex shoulder, two carbide alloy grooving tools of welding-on between convex shoulder and planar ends, impact cover 6 shapes such as tubulose, the one end is the plane, the other end has helicoid, the spiral head number and the helical pitch of the helicoid on its helicoid head number and helical pitch and the grooving tool 8 are identical, but both rotation directions are identical, spring 4, impacting cover 6 and grooving tool 8 is sleeved on the power transmission shaft 3 successively, one end of spring 4 is engaged with the duplex shaft shoulder on the power transmission shaft 3, the other end engages with the planar ends of power transmission shaft 6, and the helicoid that impacts cover 6 and grooving tool 8 engages, and impacts cover 6 and power transmission shaft 3 usefulness pins 7 and is set on together, make spring be in certain impaction state, the two ends of described fluting mechanism removably are connected with drill bit 11 with twist drill rods 1 respectively.
2, fluting drilling tool according to claim 1 is characterized in that: at spring 4, impact the outside of cover 6 and grooving tool 8 also by being equipped with little telescopic 12 and big telescopic 5.
3, fluting drilling tool according to claim 1 is characterized in that: also clamping back-up ring 10 on the power transmission shaft in the outside of fluting drilling tool 8.
4, fluting drilling tool according to claim 1 is characterized in that: the optional usefulness of the carbide alloy of welding-on fluting cutter head is 2～5 on the grooving tool 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88217736 CN2047710U (en) | 1988-11-24 | 1988-11-24 | Slotted drilling tool for coal-mining electrical driller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88217736 CN2047710U (en) | 1988-11-24 | 1988-11-24 | Slotted drilling tool for coal-mining electrical driller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2047710U true CN2047710U (en) | 1989-11-15 |
Family
ID=4850253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88217736 Withdrawn CN2047710U (en) | 1988-11-24 | 1988-11-24 | Slotted drilling tool for coal-mining electrical driller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2047710U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443041A (en) * | 2015-11-17 | 2016-03-30 | 中国石油大学(华东) | Differential pressure type drill |
| CN112338576A (en) * | 2020-10-29 | 2021-02-09 | 镇江市龙润工具有限公司 | Machining device and machining method for G-groove twist drill |
| CN115538930A (en) * | 2022-09-27 | 2022-12-30 | 重庆交通大学 | Special-shaped hole slotting tool bit orienting device based on rock drilling trolley drill arm |
| CN115538938A (en) * | 2022-09-27 | 2022-12-30 | 重庆交通大学 | Drill jumbo-based tool bit orienting device for orienting and slotting special-shaped holes |
-
1988
- 1988-11-24 CN CN 88217736 patent/CN2047710U/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443041A (en) * | 2015-11-17 | 2016-03-30 | 中国石油大学(华东) | Differential pressure type drill |
| CN105443041B (en) * | 2015-11-17 | 2018-08-10 | 中国石油大学(华东) | Differential pressure type drill bit |
| CN112338576A (en) * | 2020-10-29 | 2021-02-09 | 镇江市龙润工具有限公司 | Machining device and machining method for G-groove twist drill |
| CN115538930A (en) * | 2022-09-27 | 2022-12-30 | 重庆交通大学 | Special-shaped hole slotting tool bit orienting device based on rock drilling trolley drill arm |
| CN115538938A (en) * | 2022-09-27 | 2022-12-30 | 重庆交通大学 | Drill jumbo-based tool bit orienting device for orienting and slotting special-shaped holes |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |